Omnikey Logging With Oscam

Hi,
am trying to resolve why my 2 Omnikey Readers everyday go offline once rebooted they are ok have looked in var/log/user.log
which showed:
May 1 12:04:59 csr1-desktop pcscd: winscard_svc.c:96:CreateContextThread() No more context available (max: 256)
Can someone explain this i had already stopped logging in the pcscd file this did not resolve the problem so have reverted back to the standard unmodified pcscd file.
thanks
csr1

Hi,
woke up to find readers were offline so went to var/log/user.log and believe i have captured the issue:

May 5 06:55:59 csr1-desktop pcscd: winscard_svc.c:96:CreateContextThread() No more context available (max: 256)
May 5 06:55:59 csr1-desktop pcscd: pcscdaemon.c:151:SVCServiceRunLoop() Problem during the context thread creation
May 5 06:55:59 csr1-desktop pcscd: winscard.c:331:SCardConnect() Error Reader Exclusive
May 5 06:56:59 csr1-desktop pcscd: last message repeated 15239 times
May 5 06:56:59 csr1-desktop pcscd: winscard_svc.c:96:CreateContextThread() No more context available (max: 256)
May 5 06:56:59 csr1-desktop pcscd: pcscdaemon.c:151:SVCServiceRunLoop() Problem during the context thread creation
May 5 06:56:59 csr1-desktop pcscd: winscard.c:331:SCardConnect() Error Reader Exclusive
May 5 06:57:31 csr1-desktop pcscd: last message repeated 7949 times
May 5 06:57:31 csr1-desktop pcscd: commands.c:1301:CCID_Receive Card absent or mute